phrase/sə.la m‿ɑ̃ tuʃ yn sɑ̃ fɛʁ bu.ʒe l‿otʁ/
I don't give a fuck; it's like water off a duck's back to me
Literally "it touches one [of my testicles] without moving the other". Of pied noir origin. Popularised by Jacques Chirac, who used it in November 1987 to express his indifference to criticism from François Mitterrand.